Sensitivity | Specificity | Positive likelihood ratio* | Negative likelihood ratio¶ | |
Dipstick | ||||
LE | 84% | 78% | 4 | 0.2 |
Nitrite | 50% | 98% | 25 | 0.5 |
Nitrite or LE | 88% | 93% | 13 | 0.1 |
Nitrite and LE | 72% | 96% | 18 | 0.3 |
Microscopy | ||||
Uncentrifuged | ||||
Pyuria (>10/mm3) (all ages) | 77% | 89% | 7 | 0.4 |
Pyuria (>10/mm3) (<2 years) | 90% | 95% | 18 | 0.1 |
Bacteriuria (Gram-stained) | 93% | 95% | 19 | 0.1 |
Overall (P+B) = enhanced | 85% | 99.9% | 85 | 0.1 |
Overall (P or B) | 95% | 89% | 9 | 0.1 |
Centrifuged | ||||
Pyuria (>5/hpf) | 67% | 79% | 3 | 0.4 |
Bacteriuria | 81% | 83% | 5 | 0.2 |
Overall (P+B) | 66% | 99% | 7 | 0.4 |
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